Adromada III or sumo nine


Good evening currently own a sumo Adromada MK III looking to purchase a sumo nine Class A Amp does anyone know if there is a great amount of difference in the two amps thanks
musicaudiohheaven

Showing 2 responses by jedinite24

My vote is for the Sumo 9. I acquired one at the end of last year and had Mike Bettinger of GASAudio.net restore it this summer. The Nine really does sound phenomenal. After letting it warm up properly the music it makes is wonderful. From cold start it sounds fine but with the full warm up time it sounds great. The only thing I don't like about it is the fan noise. The 9 runs hot and the fan helps keep things cool but I can't find an AC fan that can push out decent CFM that is quieter than 33dBs.
Hi Brian_eno

Glad you are enjoying the Sumo amp you acquired. What is Revision C on the Nine Plus you have? Does that mean you have a 3rd generation Sumo Nine Plus? I don't think I've ever read anywhere about different revisions for the Sumo amps.

Mike Bettinger does great work on Sumo and GAS amps. He send me pics of the work he did while he was re-building my Sumo Nine and I was amazed. Very nice work. I'm contemplating a reference re-build for my Sumo but I really don't like being without it. Even in this summer heat I enjoy the music it makes. I did eventually get used to the fan noise.